/* ================================
   1) Design Tokens (CSS Variables)
   사이트 전체 톤앤매너를 통일하기 위한 변수
================================ */
:root {
    --color-bg: #090b13;
    --color-surface: #121629;
    --color-surface-2: #1a2035;
    --color-text: #e9edff;
    --color-text-muted: #97a0c3;
    --color-primary: #8c5bff;
    --color-secondary: #19d4ff;
    --color-border: rgba(255, 255, 255, 0.12);
    --color-shadow-neon: rgba(140, 91, 255, 0.45);
    --color-shadow-neon-2: rgba(25, 212, 255, 0.35);

    --radius-lg: 18px;
    --radius-md: 12px;
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 32px;
    --space-xl: 64px;

    --container-max: 1200px;
    --header-h: 72px;
}

/* 박스 사이징 통일 */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* 기본 바디 스타일 */
body {
    margin: 0;
    font-family: "Segoe UI", "Noto Sans KR", sans-serif;
    background: radial-gradient(circle at top right, #1a1f3a 0%, var(--color-bg) 45%);
    color: var(--color-text);
    line-height: 1.6;
}

/* 공통 컨테이너: 모든 섹션 너비 기준 */
.container {
    width: min(100% - 40px, var(--container-max));
    margin: 0 auto;
}

/* 링크 기본 스타일 */
a {
    color: inherit;
    text-decoration: none;
}

/* ================================
   2) Header / GNB
================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    background: rgba(9, 11, 19, 0.82);
    backdrop-filter: blur(12px);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.brand {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.gnb-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.gnb-list a {
    color: var(--color-text-muted);
    font-weight: 600;
    transition: color 0.2s ease;
}

.gnb-list a:hover {
    color: var(--color-secondary);
}

/* 모바일 메뉴 버튼 */
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-surface);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    background: var(--color-text);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ================================
   3) Main / Hero
================================ */
main {
    padding-top: var(--header-h);
}

.hero-section {
    padding: var(--space-xl) 0 var(--space-lg);
}

.hero-content {
    text-align: center;
    max-width: 760px;
}

.hero-kicker {
    margin: 0 0 var(--space-xs);
    color: var(--color-secondary);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.hero-content h1 {
    margin: 0 0 var(--space-sm);
    line-height: 1.2;
    font-size: clamp(1.9rem, 4.5vw, 3rem);
}

.hero-description {
    margin: 0 auto;
    color: var(--color-text-muted);
    max-width: 620px;
}

/* ================================
   4) Game Cards Grid
================================ */
.game-section {
    padding: var(--space-md) 0 var(--space-xl);
}

.section-title-wrap {
    margin-bottom: var(--space-md);
}

.section-title-wrap h2 {
    margin: 0;
    font-size: clamp(1.3rem, 3vw, 2rem);
}

.section-title-wrap p {
    margin: var(--space-xs) 0 0;
    color: var(--color-text-muted);
}

.game-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.game-card {
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: linear-gradient(165deg, var(--color-surface), var(--color-surface-2));
    border: 1px solid var(--color-border);
    transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.game-card img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.game-card-body {
    padding: var(--space-md);
}

.game-card h3 {
    margin: 0 0 var(--space-xs);
    font-size: 1.15rem;
}

.game-card p {
    margin: 0 0 var(--space-md);
    color: var(--color-text-muted);
    min-height: 48px;
}

/* 네온 느낌 버튼 */
.play-btn {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(120deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 4px 20px rgba(25, 212, 255, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(140, 91, 255, 0.4);
}

.play-btn.disabled {
    opacity: 0.55;
    pointer-events: none;
}

/* 카드 Hover: 부드러운 스케일 + 네온 글로우 */
.game-card:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: rgba(140, 91, 255, 0.45);
    box-shadow: 0 12px 32px var(--color-shadow-neon), 0 0 28px var(--color-shadow-neon-2);
}

/* ================================
   5) Sub Page
================================ */
.sub-page-main {
    min-height: calc(100vh - var(--header-h));
    display: grid;
    place-items: center;
    padding: var(--space-lg) 0;
}

.sub-hero {
    width: 100%;
}

.sub-hero .container {
    text-align: center;
    background: linear-gradient(180deg, rgba(140, 91, 255, 0.12), rgba(25, 212, 255, 0.06));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-lg);
}

.sub-hero h1 {
    margin: 0 0 var(--space-xs);
}

.contact-page {
    padding: calc(var(--header-h) + var(--space-lg)) 0 var(--space-xl);
    min-height: 100vh;
    display: grid;
    gap: var(--space-md);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-lg);
    align-items: start;
}

.contact-card,
.contact-form {
    background: linear-gradient(180deg, rgba(18, 22, 41, 0.96), rgba(11, 15, 29, 0.96));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.contact-card h2,
.contact-form h2 {
    margin-top: 0;
}

.contact-card p,
.contact-card li,
.contact-form label {
    color: var(--color-text-muted);
}

.contact-card ul {
    margin: var(--space-md) 0 0;
    padding-left: 18px;
}

.contact-card li {
    margin-bottom: 10px;
}

.contact-form {
    display: grid;
    gap: var(--space-md);
}

.contact-form label {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text);
    font-size: 1rem;
}

.contact-form textarea {
    min-height: 200px;
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(25, 212, 255, 0.12);
}

.contact-form button {
    width: fit-content;
    padding: 12px 20px;
    border-radius: 999px;
    border: none;
    color: #fff;
    background: linear-gradient(120deg, var(--color-primary), var(--color-secondary));
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.contact-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(140, 91, 255, 0.38);
}

.contact-help {
    display: block;
    margin-top: var(--space-xs);
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .contact-page {
        padding-top: calc(var(--header-h) + var(--space-md));
    }
}

.sub-hero p {
    margin: 0 0 var(--space-md);
    color: var(--color-text-muted);
}

/* ================================
   6) Aim Trainer
================================ */
.aim-main {
    padding-top: calc(var(--header-h) + var(--space-md));
    padding-bottom: var(--space-lg);
    min-height: 100vh;
}

.aim-shell {
    display: grid;
    gap: var(--space-md);
}

.aim-hud {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-sm);
}

.hud-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: linear-gradient(165deg, var(--color-surface), var(--color-surface-2));
    padding: var(--space-sm) var(--space-md);
}

.hud-label {
    display: block;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.hud-item strong {
    font-size: 1.05rem;
}

.aim-board {
    position: relative;
    width: 100%;
    min-height: min(72vh, 760px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(140, 91, 255, 0.3);
    background:
        radial-gradient(circle at 50% 50%, rgba(25, 212, 255, 0.08), transparent 48%),
        linear-gradient(160deg, #101525, #0a0e1a 60%, #090b13);
    box-shadow: 0 0 28px rgba(25, 212, 255, 0.12);
    user-select: none;
}

/* 게임 진행 중에만 보드 내부 커서를 조준점으로 고정 */
.aim-board.game-active {
    cursor: crosshair;
}

/* 타겟 좌표 기준점을 정확히 중앙으로 맞추기 위한 스타일 */
.aim-target {
    position: absolute;
    left: 0;
    top: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #ffb0b0, #ff3b3b 45%, #d00000 100%);
    box-shadow: 0 0 10px rgba(255, 60, 60, 0.95), 0 0 24px rgba(255, 45, 45, 0.6);
    transform: translate(-50%, -50%);
    cursor: crosshair;
    z-index: 20;
}

.aim-target.is-moving {
    transition: transform 140ms linear;
}

.target-hit-effect {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 2px solid rgba(255, 122, 122, 0.95);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: hitPulse 260ms ease-out forwards;
    pointer-events: none;
    z-index: 25;
}

.miss-text-effect {
    position: absolute;
    color: #ff7f7f;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-shadow: 0 0 8px rgba(255, 86, 86, 0.6);
    transform: translate(-50%, -50%);
    animation: missFloat 420ms ease-out forwards;
    pointer-events: none;
    z-index: 26;
}

@keyframes missFloat {
    from {
        opacity: 1;
        transform: translate(-50%, -50%) scale(0.92);
    }
    to {
        opacity: 0;
        transform: translate(-50%, -75%) scale(1.05);
    }
}

/* 오답 시 보드가 살짝 붉어지는 피드백 */
.aim-board.miss-flash::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(circle at center, rgba(255, 43, 43, 0.16), rgba(255, 43, 43, 0.05));
    animation: missFlash 220ms ease-out;
}

@keyframes missFlash {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes hitPulse {
    from {
        opacity: 1;
        width: 10px;
        height: 10px;
    }
    to {
        opacity: 0;
        width: 52px;
        height: 52px;
    }
}

.board-overlay {
    position: absolute;
    inset: 0;
    z-index: 30;
    display: grid;
    place-items: center;
    padding: var(--space-md);
    background: rgba(4, 6, 12, 0.72);
    backdrop-filter: blur(4px);
}

.board-overlay.hidden {
    display: none;
}

.overlay-panel {
    width: min(720px, 100%);
    border: 1px solid rgba(140, 91, 255, 0.35);
    border-radius: var(--radius-lg);
    background: linear-gradient(165deg, rgba(18, 22, 41, 0.97), rgba(11, 15, 29, 0.95));
    padding: var(--space-lg);
    text-align: center;
    box-shadow: 0 0 34px rgba(140, 91, 255, 0.28);
}

.overlay-panel h1,
.overlay-panel h2 {
    margin: 0 0 var(--space-xs);
}

.overlay-subtitle {
    margin: 0 0 8px;
    font-size: 0.95rem;
    color: #cbd5ff;
    text-align: left;
    letter-spacing: 0.4px;
}

.overlay-panel p {
    margin: 0 0 var(--space-md);
    color: var(--color-text-muted);
}

.difficulty-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.difficulty-btn {
    border: 1px solid rgba(25, 212, 255, 0.3);
    border-radius: 12px;
    background: #151a2e;
    color: var(--color-text);
    padding: 11px 10px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.difficulty-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(140, 91, 255, 0.7);
    box-shadow: 0 8px 22px rgba(140, 91, 255, 0.35);
}

.difficulty-btn.active {
    border-color: rgba(25, 212, 255, 0.85);
    box-shadow: 0 0 0 1px rgba(25, 212, 255, 0.25) inset;
}

.back-link {
    color: var(--color-secondary);
    font-weight: 600;
}

.result-panel {
    max-width: 520px;
}

.result-badge {
    margin-bottom: 4px;
    font-size: 0.78rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

#resultTitle.victory {
    color: #ab86ff;
    text-shadow: 0 0 10px rgba(171, 134, 255, 0.8), 0 0 25px rgba(25, 212, 255, 0.55);
}

#resultTitle.defeat {
    color: #a8acba;
    text-shadow: none;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-sm);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
    margin: 0 0 var(--space-sm);
}

.stat-card {
    margin: 0;
    padding: 10px 12px;
    border: 1px solid rgba(25, 212, 255, 0.25);
    border-radius: 12px;
    background: rgba(15, 20, 36, 0.7);
}

.stat-card span {
    display: block;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: 3px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
}

.stat-card strong {
    font-size: 1.2rem;
    color: #a8f0ff;
    text-shadow: 0 0 8px rgba(25, 212, 255, 0.35);
}

.ghost-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    box-shadow: none;
}

/* ================================
   7) Dodge Trainer
================================ */
.dodge-main {
    padding-top: calc(var(--header-h) + var(--space-md));
    padding-bottom: var(--space-lg);
    min-height: 100vh;
}

.dodge-shell {
    display: grid;
    gap: var(--space-sm);
}

.dodge-hud {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
}

.dodge-hp-wrap {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: linear-gradient(165deg, var(--color-surface), var(--color-surface-2));
}

.dodge-hp-track {
    position: relative;
    height: 12px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.08);
}

.dodge-hp-bar {
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #26e6ff, #8c5bff 60%, #ff547d);
    transition: width 240ms ease;
}

.dodge-board {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(25, 212, 255, 0.32);
    min-height: min(72vh, 760px);
    background: #090d1a;
}

#dodgeCanvas {
    width: 100%;
    height: 100%;
    display: block;
    background:
        linear-gradient(rgba(96, 111, 173, 0.14) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 111, 173, 0.14) 1px, transparent 1px),
        radial-gradient(circle at center, rgba(25, 212, 255, 0.08), transparent 50%),
        #090d1a;
    background-size: 36px 36px, 36px 36px, auto, auto;
    cursor: crosshair;
}

.dodge-countdown {
    position: absolute;
    inset: 0;
    z-index: 28;
    display: grid;
    place-items: center;
    font-size: clamp(3rem, 11vw, 8rem);
    font-weight: 800;
    color: #ccf7ff;
    text-shadow: 0 0 15px rgba(25, 212, 255, 0.7), 0 0 35px rgba(140, 91, 255, 0.4);
    pointer-events: none;
}

/* ================================
   8) Responsive Breakpoints
================================ */
/* 태블릿: 카드 2열 */
@media (max-width: 1024px) {
    .game-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .difficulty-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .mode-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .dodge-hud {
        grid-template-columns: 1fr 1fr;
    }
}

/* 모바일: GNB를 햄버거/슬라이드다운으로 전환 + 카드 1열 */
@media (max-width: 768px) {
    .menu-toggle {
        display: inline-block;
    }

    .gnb {
        display: none;
        position: absolute;
        top: var(--header-h);
        left: 0;
        width: 100%;
        border-bottom: 1px solid var(--color-border);
        background: rgba(13, 16, 29, 0.98);
    }

    .gnb.is-open {
        display: block;
    }

    .gnb-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .gnb-list li a {
        display: block;
        padding: 14px 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    .game-grid {
        grid-template-columns: 1fr;
    }

    .hero-section {
        padding-top: var(--space-lg);
    }

    .aim-hud {
        grid-template-columns: 1fr;
    }

    .aim-board {
        min-height: 62vh;
    }

    .difficulty-grid {
        grid-template-columns: 1fr;
    }

    .mode-grid {
        grid-template-columns: 1fr;
    }

    .result-stats {
        grid-template-columns: 1fr;
    }

    .dodge-hud {
        grid-template-columns: 1fr;
    }

    .dodge-hp-wrap {
        grid-template-columns: 1fr;
    }

    .dodge-board {
        min-height: 62vh;
    }
}